Influence of the Gas Atmosphere on the Deprotection of (Z)-γ -Hydroxy- α , β-Unsaturated Esters

Author(s): Irakusne Lopez, Santiago Rodriguez, Javier Izquierdo, Florenci V. Gonzalez, Cristian Vicent

Journal Name: Letters in Organic Chemistry

Volume 6 , Issue 6 , 2009


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Abstract:

The deprotection of O-protected (Z)-α-methyl-γ-hydroxy-α,β-unsaturated ester 1 furnishes dimer 2 when the reaction is performed under a nitrogen atmosphere, while compound 3 forms when the reaction is performed under an oxygen atmosphere.

Keywords: butenolides, dimerization, γ-hydroxybutenolides, auto-oxidation, desylilation, atmosphere

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Article Details

VOLUME: 6
ISSUE: 6
Year: 2009
Page: [504 - 506]
Pages: 3
DOI: 10.2174/157017809789124939
Price: $65

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